6,11a-(epoxymethano)-11aH-cyclopenta[a]chrysen-14-one, eicosahydro-5b-hydroxy-3a,5a,8,8,13a-pentamethyl-3-(1-methylethyl)-, (3R,3aR,5aS,5bR,6S,7aS,11aR,11bR,13aS,13bR)- 8alpha-Hydroxyfernan-25,7beta-olide InChI=1/C30H48O3/c1-18(2)19-9-10-20-26(19,5)15-16-28(7)27(20,6)14-11-21-29-13-8-12-25(3,4)22(29)17-23(30(21,28)32)33-24(29)31/h18-23,32H,8-17H2,1-7H3/t19-,20-,21-,22+,23+,26-,27+,28+,29+,30+/m1/s rel-(3R,3aR,5aS,5bR,6S,7aS,11aR,11bR,13aS,13bR)-5b-hydroxy-3-isopropyl-3a,5a,8,8,13a-pentamethylicosahydro-6,11a-(epoxymethano)cyclopenta[a]chrysen-14-one